USA Gymnastics has announced the U.S. trampoline and tumbling gymnasts who will represent the United States in the 2018 Senior Pan American Championships, scheduled for September 5-9, in Lima, Peru, and the Loule World Cup, held October 4-6 in Loule, Portugal.

Ragan Smith is the defending champion. Morgan Hurd is the reigning world titlist. And there’s one more well-known contender for the U.S. title when the women's competition begins Friday evening at the 2018 U.S. Championships - Simone Biles, the Olympic champion and three-time World all-around champ.

Two-time Olympian Sam Mikulak leads the senior men’s all-around rankings after the first night of men’s competition at the 2018 U.S. Gymnastics Championships, the national championships for men’s and women’s gymnastics.

Two-time Olympian Sam Mikulak leads the senior men’s all-around rankings after the first night of men’s competition at the 2018 U.S. Gymnastics Championships, the national championships for men’s and women’s gymnastics.